Install insoles in rubber boots

I was prescribed by the orthopedist insoles that I should put in one of my matching running shoes. Unfortunately, I could not get in the shoe with my foot. What now? Buy extra shoes with a changeable footbed or let the insoles work in a shoe?

I thought about which shoes I wear most. When I'm at home, I'm wearing slippers, and these comfortable rubber shoes with holes that came on the market a few years ago.

These shoes are available with a removable footbed, quite cheap at the discount store.

I took out the footbed and fixed the insole with Velcro.

The footbed can be easily removed with these cheap rubber shoes. With Velcro then the insole is fixed in the shoe, so it can be removed for washing.

So I can take the sole out and wash the shoes in the washing machine when I sweat heavily. So I run cheap as on clouds.